| OLD | NEW |
|---|
| (Empty) |
| 1 /* | |
| 2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "config.h" | |
| 32 #include "bindings/v8/V8CustomElementLifecycleCallbacks.h" | |
| 33 | |
| 34 #include "bindings/core/v8/V8Element.h" | |
| 35 #include "bindings/v8/CustomElementBinding.h" | |
| 36 #include "bindings/v8/DOMDataStore.h" | |
| 37 #include "bindings/v8/ScriptController.h" | |
| 38 #include "bindings/v8/V8Binding.h" | |
| 39 #include "bindings/v8/V8HiddenValue.h" | |
| 40 #include "bindings/v8/V8PerContextData.h" | |
| 41 #include "core/dom/ExecutionContext.h" | |
| 42 #include "core/inspector/InspectorInstrumentation.h" | |
| 43 #include "wtf/PassOwnPtr.h" | |
| 44 | |
| 45 namespace WebCore { | |
| 46 | |
| 47 #define CALLBACK_LIST(V) \ | |
| 48 V(created, Created) \ | |
| 49 V(attached, Attached) \ | |
| 50 V(detached, Detached) \ | |
| 51 V(attributeChanged, AttributeChanged) | |
| 52 | |
| 53 PassRefPtr<V8CustomElementLifecycleCallbacks> V8CustomElementLifecycleCallbacks:
:create(ScriptState* scriptState, v8::Handle<v8::Object> prototype, v8::Handle<v
8::Function> created, v8::Handle<v8::Function> attached, v8::Handle<v8::Function
> detached, v8::Handle<v8::Function> attributeChanged) | |
| 54 { | |
| 55 v8::Isolate* isolate = scriptState->isolate(); | |
| 56 // A given object can only be used as a Custom Element prototype | |
| 57 // once; see customElementIsInterfacePrototypeObject | |
| 58 #define SET_HIDDEN_VALUE(Value, Name) \ | |
| 59 ASSERT(V8HiddenValue::getHiddenValue(isolate, prototype, V8HiddenValue::cust
omElement##Name(isolate)).IsEmpty()); \ | |
| 60 if (!Value.IsEmpty()) \ | |
| 61 V8HiddenValue::setHiddenValue(isolate, prototype, V8HiddenValue::customE
lement##Name(isolate), Value); | |
| 62 | |
| 63 CALLBACK_LIST(SET_HIDDEN_VALUE) | |
| 64 #undef SET_HIDDEN_VALUE | |
| 65 | |
| 66 return adoptRef(new V8CustomElementLifecycleCallbacks(scriptState, prototype
, created, attached, detached, attributeChanged)); | |
| 67 } | |
| 68 | |
| 69 static CustomElementLifecycleCallbacks::CallbackType flagSet(v8::Handle<v8::Func
tion> attached, v8::Handle<v8::Function> detached, v8::Handle<v8::Function> attr
ibuteChanged) | |
| 70 { | |
| 71 // V8 Custom Elements always run created to swizzle prototypes. | |
| 72 int flags = CustomElementLifecycleCallbacks::Created; | |
| 73 | |
| 74 if (!attached.IsEmpty()) | |
| 75 flags |= CustomElementLifecycleCallbacks::Attached; | |
| 76 | |
| 77 if (!detached.IsEmpty()) | |
| 78 flags |= CustomElementLifecycleCallbacks::Detached; | |
| 79 | |
| 80 if (!attributeChanged.IsEmpty()) | |
| 81 flags |= CustomElementLifecycleCallbacks::AttributeChanged; | |
| 82 | |
| 83 return CustomElementLifecycleCallbacks::CallbackType(flags); | |
| 84 } | |
| 85 | |
| 86 template <typename T> | |
| 87 static void weakCallback(const v8::WeakCallbackData<T, ScopedPersistent<T> >& da
ta) | |
| 88 { | |
| 89 data.GetParameter()->clear(); | |
| 90 } | |
| 91 | |
| 92 V8CustomElementLifecycleCallbacks::V8CustomElementLifecycleCallbacks(ScriptState
* scriptState, v8::Handle<v8::Object> prototype, v8::Handle<v8::Function> create
d, v8::Handle<v8::Function> attached, v8::Handle<v8::Function> detached, v8::Han
dle<v8::Function> attributeChanged) | |
| 93 : CustomElementLifecycleCallbacks(flagSet(attached, detached, attributeChang
ed)) | |
| 94 , ContextLifecycleObserver(scriptState->executionContext()) | |
| 95 , m_owner(0) | |
| 96 , m_scriptState(scriptState) | |
| 97 , m_prototype(scriptState->isolate(), prototype) | |
| 98 , m_created(scriptState->isolate(), created) | |
| 99 , m_attached(scriptState->isolate(), attached) | |
| 100 , m_detached(scriptState->isolate(), detached) | |
| 101 , m_attributeChanged(scriptState->isolate(), attributeChanged) | |
| 102 { | |
| 103 m_prototype.setWeak(&m_prototype, weakCallback<v8::Object>); | |
| 104 | |
| 105 #define MAKE_WEAK(Var, _) \ | |
| 106 if (!m_##Var.isEmpty()) \ | |
| 107 m_##Var.setWeak(&m_##Var, weakCallback<v8::Function>); | |
| 108 | |
| 109 CALLBACK_LIST(MAKE_WEAK) | |
| 110 #undef MAKE_WEAK | |
| 111 } | |
| 112 | |
| 113 V8PerContextData* V8CustomElementLifecycleCallbacks::creationContextData() | |
| 114 { | |
| 115 if (!executionContext()) | |
| 116 return 0; | |
| 117 | |
| 118 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 119 if (context.IsEmpty()) | |
| 120 return 0; | |
| 121 | |
| 122 return V8PerContextData::from(context); | |
| 123 } | |
| 124 | |
| 125 V8CustomElementLifecycleCallbacks::~V8CustomElementLifecycleCallbacks() | |
| 126 { | |
| 127 if (!m_owner) | |
| 128 return; | |
| 129 | |
| 130 v8::HandleScope handleScope(m_scriptState->isolate()); | |
| 131 if (V8PerContextData* perContextData = creationContextData()) | |
| 132 perContextData->clearCustomElementBinding(m_owner); | |
| 133 } | |
| 134 | |
| 135 bool V8CustomElementLifecycleCallbacks::setBinding(CustomElementDefinition* owne
r, PassOwnPtr<CustomElementBinding> binding) | |
| 136 { | |
| 137 ASSERT(!m_owner); | |
| 138 | |
| 139 V8PerContextData* perContextData = creationContextData(); | |
| 140 if (!perContextData) | |
| 141 return false; | |
| 142 | |
| 143 m_owner = owner; | |
| 144 | |
| 145 // Bindings retrieve the prototype when needed from per-context data. | |
| 146 perContextData->addCustomElementBinding(owner, binding); | |
| 147 | |
| 148 return true; | |
| 149 } | |
| 150 | |
| 151 void V8CustomElementLifecycleCallbacks::created(Element* element) | |
| 152 { | |
| 153 // FIXME: callbacks while paused should be queued up for execution to | |
| 154 // continue then be delivered in order rather than delivered immediately. | |
| 155 // Bug 329665 tracks similar behavior for other synchronous events. | |
| 156 if (!executionContext() || executionContext()->activeDOMObjectsAreStopped()) | |
| 157 return; | |
| 158 | |
| 159 element->setCustomElementState(Element::Upgraded); | |
| 160 | |
| 161 if (m_scriptState->contextIsEmpty()) | |
| 162 return; | |
| 163 ScriptState::Scope scope(m_scriptState.get()); | |
| 164 v8::Isolate* isolate = m_scriptState->isolate(); | |
| 165 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 166 v8::Handle<v8::Object> receiver = m_scriptState->world().domDataStore().get<
V8Element>(element, isolate); | |
| 167 if (!receiver.IsEmpty()) { | |
| 168 // Swizzle the prototype of the existing wrapper. We don't need to | |
| 169 // worry about non-existent wrappers; they will get the right | |
| 170 // prototype when wrapped. | |
| 171 v8::Handle<v8::Object> prototype = m_prototype.newLocal(isolate); | |
| 172 if (prototype.IsEmpty()) | |
| 173 return; | |
| 174 receiver->SetPrototype(prototype); | |
| 175 } | |
| 176 | |
| 177 v8::Handle<v8::Function> callback = m_created.newLocal(isolate); | |
| 178 if (callback.IsEmpty()) | |
| 179 return; | |
| 180 | |
| 181 if (receiver.IsEmpty()) | |
| 182 receiver = toV8(element, context->Global(), isolate).As<v8::Object>(); | |
| 183 | |
| 184 ASSERT(!receiver.IsEmpty()); | |
| 185 | |
| 186 InspectorInstrumentation::willExecuteCustomElementCallback(element); | |
| 187 | |
| 188 v8::TryCatch exceptionCatcher; | |
| 189 exceptionCatcher.SetVerbose(true); | |
| 190 ScriptController::callFunction(executionContext(), callback, receiver, 0, 0,
isolate); | |
| 191 } | |
| 192 | |
| 193 void V8CustomElementLifecycleCallbacks::attached(Element* element) | |
| 194 { | |
| 195 call(m_attached, element); | |
| 196 } | |
| 197 | |
| 198 void V8CustomElementLifecycleCallbacks::detached(Element* element) | |
| 199 { | |
| 200 call(m_detached, element); | |
| 201 } | |
| 202 | |
| 203 void V8CustomElementLifecycleCallbacks::attributeChanged(Element* element, const
AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue) | |
| 204 { | |
| 205 // FIXME: callbacks while paused should be queued up for execution to | |
| 206 // continue then be delivered in order rather than delivered immediately. | |
| 207 // Bug 329665 tracks similar behavior for other synchronous events. | |
| 208 if (!executionContext() || executionContext()->activeDOMObjectsAreStopped()) | |
| 209 return; | |
| 210 | |
| 211 if (m_scriptState->contextIsEmpty()) | |
| 212 return; | |
| 213 ScriptState::Scope scope(m_scriptState.get()); | |
| 214 v8::Isolate* isolate = m_scriptState->isolate(); | |
| 215 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 216 v8::Handle<v8::Object> receiver = toV8(element, context->Global(), isolate).
As<v8::Object>(); | |
| 217 ASSERT(!receiver.IsEmpty()); | |
| 218 | |
| 219 v8::Handle<v8::Function> callback = m_attributeChanged.newLocal(isolate); | |
| 220 if (callback.IsEmpty()) | |
| 221 return; | |
| 222 | |
| 223 v8::Handle<v8::Value> argv[] = { | |
| 224 v8String(isolate, name), | |
| 225 oldValue.isNull() ? v8::Handle<v8::Value>(v8::Null(isolate)) : v8::Handl
e<v8::Value>(v8String(isolate, oldValue)), | |
| 226 newValue.isNull() ? v8::Handle<v8::Value>(v8::Null(isolate)) : v8::Handl
e<v8::Value>(v8String(isolate, newValue)) | |
| 227 }; | |
| 228 | |
| 229 InspectorInstrumentation::willExecuteCustomElementCallback(element); | |
| 230 | |
| 231 v8::TryCatch exceptionCatcher; | |
| 232 exceptionCatcher.SetVerbose(true); | |
| 233 ScriptController::callFunction(executionContext(), callback, receiver, WTF_A
RRAY_LENGTH(argv), argv, isolate); | |
| 234 } | |
| 235 | |
| 236 void V8CustomElementLifecycleCallbacks::call(const ScopedPersistent<v8::Function
>& weakCallback, Element* element) | |
| 237 { | |
| 238 // FIXME: callbacks while paused should be queued up for execution to | |
| 239 // continue then be delivered in order rather than delivered immediately. | |
| 240 // Bug 329665 tracks similar behavior for other synchronous events. | |
| 241 if (!executionContext() || executionContext()->activeDOMObjectsAreStopped()) | |
| 242 return; | |
| 243 | |
| 244 if (m_scriptState->contextIsEmpty()) | |
| 245 return; | |
| 246 ScriptState::Scope scope(m_scriptState.get()); | |
| 247 v8::Isolate* isolate = m_scriptState->isolate(); | |
| 248 v8::Handle<v8::Context> context = m_scriptState->context(); | |
| 249 v8::Handle<v8::Function> callback = weakCallback.newLocal(isolate); | |
| 250 if (callback.IsEmpty()) | |
| 251 return; | |
| 252 | |
| 253 v8::Handle<v8::Object> receiver = toV8(element, context->Global(), isolate).
As<v8::Object>(); | |
| 254 ASSERT(!receiver.IsEmpty()); | |
| 255 | |
| 256 InspectorInstrumentation::willExecuteCustomElementCallback(element); | |
| 257 | |
| 258 v8::TryCatch exceptionCatcher; | |
| 259 exceptionCatcher.SetVerbose(true); | |
| 260 ScriptController::callFunction(executionContext(), callback, receiver, 0, 0,
isolate); | |
| 261 } | |
| 262 | |
| 263 } // namespace WebCore | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 351423002:
Moved files under Source/bindings/v8 to Source/bindings/core/v8. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk